Assignee
Inventors
- Tetsuji Kawashima (36 patents)
- Yukio Shishido (28 patents)
- Yoshiyuki Tokumoto (2 patents)
- Toru Ifuku (1 patents)
- Hiroshi Naganuma (11 patents)
- Kiyoshi Arai (43 patents)
- Hideho Maeda (5 patents)
US Patent 8213284 · Granted Jul 3, 2012